Riser pad



FIG. 1 is a front elevation view of a riser pad of our new design;

FIG. 2 is a side elevation view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a back elevation view thereof; and,

FIG. 5 is an isometric view thereof. 

The ornamental design for the riser pad, as shown and described. 